Below is the Reader's Digest version of a story I first heard in the Navy.
A snake was dying of exposure one night when the temperature dropped below freezing. A man noticed the situation, and being kind hearted, offered his assistance, but only after the snake assured him he would not be bitten. The man picked up the snake, took him home and placed him near the fireplace. After worming up, though, the snake bite the man. As he lay dying, the man reminded the snake of his promise, to which the snake replied, "You knew what I was when you picked me up!"
There are numerous warnings about Cirrus on this forum.